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Finding the Fourth Proportional to 303,404.60, 455,197.44 and 90,179.59

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Solution

The fourth proportional to 303,404.60, 455,197.44 and 90,179.59 is: 135,296.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,404.60 : 455,197.44 = 90,179.59 : x
  2. Step 2: Convert to fraction form
    303,404.60/455,197.44 = 90,179.59/x
  3. Step 3: Cross multiply
    303,404.60x = 455,197.44 × 90,179.59
  4. Step 4: Simplify right side
    303,404.60x = 41,049,516,232.26
  5. Step 5: Solve for x
    x = 41,049,516,232.26/303,404.60
  6. Step 6: Final answer
    x = 135,296.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.